William DrogoMontagu, 7th Duke of Manchester was born on 15 October 1823 at Kimbolton Castle, Kimbolton, Huntingdonshire, England.2 He was the son of GeorgeMontagu, 6th Duke of Manchester and MillicentSparrow.3 He married Luise Friederike AugusteGräfinvonAlten, daughter of Karl Franz VictorGrafvonAlten and HerminedeSchminke, on 22 July 1852.4 He died on 22 March 1890 at age 66.4 He gained the rank of Captain in the service of the Grenadier Guards.4 He held the office of Member of Parliament (M.P.) (Conservative) for Bewdley between 1847 and 1852.4 He was Member of Parliament (M.P.) (Conservative) for Huntingdonshire between 1852 and 1855.4 He succeeded to the title of 10th Viscount Mandeville [E., 1620] on 18 August 1855.4 He succeeded to the title of 10th Earl of Manchester, co. Lancaster [E., 1626] on 18 August 1855.4 He succeeded to the title of 7th Duke of Manchester [E., 1719] on 18 August 1855.1 He succeeded to the title of 10th Baron Kimbolton of Kimbolton, co. Huntingdon [E., 1620] on 18 August 1855.4 He gained the rank of Honorary Colonel in the service of the Huntingdon Militia.4 He was invested as a Knight, Order of St. Patrick (K.P.) in 1877.4 He held the office of Deputy Lieutenant (D.L.).4

CharlotteGrimaldi, Duchess of Valentinois was born on 30 September 1898. She was the daughter of Louis IIGrimaldi, Prince de Monaco and Marie JulietteLouvet. She married PierredePolignac, Prince of Valentinois on 19 March 1920.1 She and PierredePolignac, Prince of Valentinois were divorced on 18 February 1933. She and PierredePolignac, Prince of Valentinois were separated on 20 March 1930. She died on 15 November 1977 at age 79. She gained the title of Duchess of Valentinois.1 She gained the title of Princesse Charlotte de Monaco. In 1919 her birth was legitimised.1

Pierre de Polignac, Prince of Valentinois

PierredePolignac, Prince of Valentinois was born on 24 October 1895. He married CharlotteGrimaldi, Duchess of Valentinois, daughter of Louis IIGrimaldi, Prince de Monaco and Marie JulietteLouvet, on 19 March 1920.2 He and CharlotteGrimaldi, Duchess of Valentinois were separated on 20 March 1930. He and CharlotteGrimaldi, Duchess of Valentinois were divorced on 18 February 1933. He died on 10 November 1964 at age 69. He gained the title of Comte de Polignac.2 He gained the title of Prince Pierre of Valentinois.2